Before they transformed the alleyway it was ridden with needles and rubbish.

Nick, an RHA ambassador, said: “It’s so important to champion projects like this so even more people will be inspired to do the same in their own community.

“It’s incredible the difference they’ve made and the sense of community that’s developed from what used to be a really threatening area to live.

“Fear for the area has turned to pride, and what could be better than that?”

Mrs Humphreys, 60, said: “There were needles everywhere, mattresses, smashed glass, dog-muck, empty beer cans – basically anything that could be thrown out found its way there – it was filthy and a dangerous place to be, especially for the local children.”

Adam Frost, three-time gold medal winner at the Chelsea Flower Show, joined the Grannies and Nick as their garden shone in the Spring sunlight.

He said it was inspirational to see the difference their work had made, and called on others to learn from their success.

He added: “Audrey and Irene have proven that it doesn’t matter if you don’t have a garden, all you need is a bit of creativity and enough passion to make a difference to where you live.

“What state would our streets and neighbourhoods be in if it wasn’t for people like Irene and Audrey? The great thing is that you don’t need a Chelsea gold medal to join Bloom either – anybody can make a difference to their community.”